Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/symfony/validator/Validation.php

@@ -0,0 +1,68 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator;
+
+/**
+ * Entry point for the Validator component.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+final class Validation
+{
+    /**
+     * The Validator API provided by Symfony 2.4 and older.
+     *
+     * @deprecated use API_VERSION_2_5_BC instead.
+     */
+    const API_VERSION_2_4 = 1;
+
+    /**
+     * The Validator API provided by Symfony 2.5 and newer.
+     */
+    const API_VERSION_2_5 = 2;
+
+    /**
+     * The Validator API provided by Symfony 2.5 and newer with a backwards
+     * compatibility layer for 2.4 and older.
+     */
+    const API_VERSION_2_5_BC = 3;
+
+    /**
+     * Creates a new validator.
+     *
+     * If you want to configure the validator, use
+     * {@link createValidatorBuilder()} instead.
+     *
+     * @return ValidatorInterface The new validator.
+     */
+    public static function createValidator()
+    {
+        return self::createValidatorBuilder()->getValidator();
+    }
+
+    /**
+     * Creates a configurable builder for validator objects.
+     *
+     * @return ValidatorBuilderInterface The new builder.
+     */
+    public static function createValidatorBuilder()
+    {
+        return new ValidatorBuilder();
+    }
+
+    /**
+     * This class cannot be instantiated.
+     */
+    private function __construct()
+    {
+    }
+}